Fig. 1

Flow chart illustrating the inclusion and exclusion criteria used in the study. K–L Kellgren–Lawrence, OA osteoarthritis, P-FT articulation between patella and femoral trochlea.

Flow chart illustrating the inclusion and exclusion criteria used in the study. K–L Kellgren–Lawrence, OA osteoarthritis, P-FT articulation between patella and femoral trochlea.